HP DV5000 won't power on

HI! I'm wondering if anyone has any advice. I shut down my dv5000 laptop the normal shutdown and then the next time I tried it won't turn on. I can see that it is getting power because the little light in the front is lit up. It is plugged in to AC the battery is about dead on it so I always us it plugged in. This is the first time I have had any problems with it.